Humorous fantasy anime Kono Subarashii Sekai ni Shukufuku wo! has grown in intensity as the show’s incapable heroes are forced into battle with a familiar foe, boasting a great deal of comedy throughout, seemingly with little actual danger involved considering the nature of the series.

It's the dullahan's special ability to throw his head up and play from a top-down strategic perspective. Allows him to see all enemies in 360° around him for a radius dependent on the altitude of his head.

Or something like that. But yeah, eye of sauron works fine, the same way but on a bigger scale.